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noise barrier News

Brüel & Kjær today announced its Predictor-LimA noise mapping and prediction software now automatically calculates noise barrier efficiency to identify inadequate barrier performance. In addition, by modelling how well a noise barrier performs along the transmission loss spectrum, acoustic experts can more easily identify the most effective noise barrier for a specific ...

Busy roads have major impacts on the environment of surrounding areas, with noise pollution from traffic being one of the biggest problems. Building sound barriers alongside the road is a common way to minimise such noise. A recent study highlights the benefits and disadvantages of sound barriers. Earth mounds, fences or walls are frequently constructed as sound barriers alongside busy roads and ...

Whilst living in cities, near airports or road and rail links, might prove useful for the commute, the noise levels can sometimes be too much to bear. A growing body of research reveals, transport noise can cause sleep disturbance, cardiovascular disease, elevated hormone levels, psychological problems and even premature death; studies on children have identified cognitive impairment, worsened ...

Green walls, designed so they are covered in vegetation, could help cut the amount of noise that enters buildings, a new study has found. In lab. tests, researchers found that a modular green wall system reduced sound levels by 15 decibels (dB). This leads them to believe that it is a promising sound reduction device that could improve quality-of-life for city residents. Green walls and green ...

As a major contributor to greenhouse gases, the transport sector figures high on the international climate change agenda. But for many living in cities, under flight paths or near major road and rail links, it's another of transport's by-products that causes most immediate harm: noise. Clearly, transport noise's long-term impacts fall a long way short of the apocalyptic projections for unabated ...

Wednesday 29th April 2015 is International Noise Awareness Day. A day when people, organisations and governments around the world raise awareness of unwanted noise that can affect your health. To commemorate this day, here’s 5 noise facts. 1. The Definition of Noise is “Unwanted Sound” Technically, there is actually no such thing as a noise. ...

Commenting on new reports benchmarking progress on noise management in Europe, Environmental Protection UK is calling for the impacts of noise to be properly taken into account in all planning and transport decisions. The reports, which were commissioned by the EU, provide an examination of implementation to date of the Environmental Noise Directive and recommend the most cost effective measures ...

After a twenty-year wait, the European Commission has today proposed new standards to cut noise levels from cars, vans, buses and lorries. Reacting to the proposal, Nina Renshaw, deputy director at Transport and Environment, said: “While this proposal is a welcome move in the right direction, it should have gone farther and faster. The vast majority of cars for sale already meet step 1 of ...

The market’s most powerful and intuitive software for environmental noise calculation – Brüel & Kjær’s Predictor-LimA Type 7810 – has more applications than ever with the release of the ninth version. Predictor-LimA maps environmental noise using coloured contours that can be overlaid on 3D models, photographic images, or online maps, making it easy for ...

New evidence has been provided to help road and rail operators decide on the best way to deal with the impact of noise in the 23 largest urban areas, and near to major roads and railways across the country. Target areas have been identified through a series of noise maps, and the relevant authority will investigate these areas to see what further noise mitigation can be carried out. Authorities ...

Tokyo-based Nippon Expressway Research Institute Company (NEXCO RI) has optimised its work on reducing environmental road noise for residents with Noise Scope - a customised beamforming tool. Created by sound and vibration expert Brüel & Kjær, Noise Scope is a part of the company’s data analysis platform PULSE, and it consists of a customised 3-metre diameter, 42-channel, ...

Noise pollution affects many Europeans, and for some, it is not only a nuisance - it can also trigger serious disease. Tuesday evening, at a prestigious ceremony in London, the European Environment Agency (EEA) and the Noise Abatement Society (NAS) presented the European Soundscape Award for the first time to raise awareness and recognise initiatives that help reduce noise levels. The winner was ...

Leading sound and vibration expert, Brüel & Kjær has made environmental noise mapping much simpler with a more user friendly version of its Predictor-LimA 7810 software – Version 8.1. This latest version has an improved data handling system, an intuitive Windows®-based graphical user interface - and integrated project organisation options for scenario management and ...

A new method of assessing the sustainability of noise reduction devices (NRDs) used in transport infrastructure, such as noise barriers or absorptive claddings, is presented in a recent study. The new set of specially designed sustainability criteria allows NRDs to be easily and accurately evaluated, its developers suggest. Noise reduction is a key part of the European Commission’s ...

Worker exposure to environmental noise is sometimes difficult to avoid. However, understanding noise levels employees are exposed to is not difficult. The most significant effect of high noise levels is permanent hearing loss. Hearing loss and the degree of loss are directly related to the total energy impacting the ears. Often, the total energy at a noise source cannot be changed. In these ...

The Environment Committee of the European Parliament will vote next week on noise limits for vehicles. The compromise proposal put forward by the lead MEP has been drafted by sports car manufacturer Porsche. The vote, scheduled for 19 September, will set noise limits from cars, vans, trucks and buses. A so called “compromise amendment”, normally designed to balance the divided views ...

Safety Professionals can now combine any sound level meters from Pulsar Instruments - including the latest Pulsar NOVA range - with the revolutionary Pulsar doseBadge system to create their very own noise assessment measurement kit. Simply, it is the most flexible way to address ...

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